/*******************************************************************************
 * Copyright (c) 2010, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ua.tests.help.criteria;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.eclipse.help.ICriteria;
import org.eclipse.help.internal.Topic;
import org.eclipse.help.internal.base.scope.CriteriaHelpScope;
import org.eclipse.help.internal.criteria.CriteriaProviderRegistry;
import org.eclipse.help.internal.criteria.CriterionResource;
import org.eclipse.help.internal.toc.Toc;
import org.eclipse.ua.tests.help.other.UserCriteria;
import org.eclipse.ua.tests.help.other.UserToc2;
import org.eclipse.ua.tests.help.other.UserTopic2;
import org.junit.jupiter.api.Test;

public class TestCriteriaProvider {

	@Test
	public void testUserTopicWithCriteria() throws Exception {
		UserTopic2 topic = new UserTopic2("Topic", null, true);
		UserCriteria criterion1 = new UserCriteria("version", "1.0", true);
		UserCriteria criterion2 = new UserCriteria("version", "2.0", true);
		topic.addCriterion(criterion1);
		topic.addCriterion(criterion2);

		Topic copy = new Topic(topic);

		ICriteria[] nativeCriteria = copy.getCriteria();
		assertThat(nativeCriteria).hasSize(2);
		assertEquals("version", nativeCriteria[0].getName());
		assertEquals("1.0", nativeCriteria[0].getValue());
		assertEquals("version", nativeCriteria[1].getName());
		assertEquals("2.0", nativeCriteria[1].getValue());

		ICriteria[] allCriteria = CriteriaProviderRegistry.getInstance().getAllCriteria(copy);
		assertTrue(containsCriterion(allCriteria, "version", "2.0"));
		assertTrue(containsCriterion(allCriteria, "version", "1.0"));
		assertTrue(containsCriterion(allCriteria, "containsLetter", "c"));
		assertFalse(containsCriterion(allCriteria, "containsLetter", "k"));
	}

	@Test
	public void testUserTocWithCriteria() throws Exception {
		UserToc2 toc = new UserToc2("Toc", null, true);
		UserCriteria criterion1 = new UserCriteria("version", "1.0", true);
		UserCriteria criterion2 = new UserCriteria("version", "2.0", true);
		toc.addCriterion(criterion1);
		toc.addCriterion(criterion2);

		Toc copy = new Toc(toc);

		ICriteria[] nativeCriteria = copy.getCriteria();
		assertThat(nativeCriteria).hasSize(2);
		assertEquals("version", nativeCriteria[0].getName());
		assertEquals("1.0", nativeCriteria[0].getValue());
		assertEquals("version", nativeCriteria[1].getName());
		assertEquals("2.0", nativeCriteria[1].getValue());

		ICriteria[] allCriteria = CriteriaProviderRegistry.getInstance().getAllCriteria(copy);
		assertTrue(containsCriterion(allCriteria, "version", "2.0"));
		assertTrue(containsCriterion(allCriteria, "version", "1.0"));
		assertTrue(containsCriterion(allCriteria, "containsLetter", "c"));
		assertFalse(containsCriterion(allCriteria, "containsLetter", "k"));
	}

	@Test
	public void testCriteriaScope() throws Exception {
		UserTopic2 topic = new UserTopic2("Topic", null, true);
		UserCriteria criterion1 = new UserCriteria("version", "1.0", true);
		topic.addCriterion(criterion1);
		CriterionResource resourceC = new CriterionResource("containsletter");
		resourceC.addCriterionValue("c");
		CriteriaHelpScope scopeC = new CriteriaHelpScope(new CriterionResource[] { resourceC });
		assertTrue(scopeC.inScope(topic));
		CriterionResource resourceK = new CriterionResource("containsletter");
		resourceK.addCriterionValue("k");
		CriteriaHelpScope scopeK = new CriteriaHelpScope(new CriterionResource[] { resourceK });
		assertFalse(scopeK.inScope(topic));
	}


	//public void testWorkingSetScope() throws Exception {
		// TODO write a test  which creates a working set scope based on the
		// criteria which are generated by the criteria provider
	//}

	private boolean containsCriterion(ICriteria[] allCriteria,
			String name, String value) {
		for (ICriteria element : allCriteria) {
			if (element.getName().equals(name) && element.getValue().equals(value)) {
				return true;
			}
		}
		return false;
	}

}
